From: James Smart Date: Thu, 21 May 2015 17:55:16 +0000 (-0400) Subject: lpfc: The lpfc driver does not issue RFF_ID and RFT_ID in the correct sequence X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e26422fe91e533cb0a51f5f5bf80856d40592e0d;p=deliverable%2Flinux.git lpfc: The lpfc driver does not issue RFF_ID and RFT_ID in the correct sequence The order (it's a shall, but hard to dictate after the fact) is given in FC-SCM - kind of. SCM indicates what shall be implemented, lists it as (a), (b), (c), but actually doesn't say it has to be in that order. The only hard requirement, called out in FCP-4, is that you must register your FC-4 Type (via RFT_ID) before registering FC-4 Type Features (via RFF_ID), which makes sense. We obviously violated this and there were some switches (or newer fw in them) that enforced it. The other rule of thumbs are: register your data with the switch first, then register for SCRs, then do queries about the fabric, with the SCRs telling you of changes post the queries. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Reviewed-by: Hannes Reinecke Reviewed-by: Sebastian Herbszt Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 2500f15d437f..f2db89fd8839 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -3868,11 +3868,11 @@ out: if (vport->port_state < LPFC_VPORT_READY) { /* Link up discovery requires Fabric registration. */ - lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */ lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); + lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Issue SCR just before NameServer GID_FT Query */ lpfc_issue_els_scr(vport, SCR_DID, 0);